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a pentagon, for example, and you try to imagine tiling it so that it goes to infinity, in effect, you find that you get gaps between the pentagons. you can't tile them evenly on a flat surface, so you have to put it on this kind of surface here. and you can show it in a picture by distorting the shape, by making them smaller as you go further and further out. and so, in principle, these will get really, really tiny as you get further and further out. and you in effect go to infinity at the very edge here. now, this is just a representation of what that kind of surface would be like. it's something called a hyperbolic plane. now, this remarkable sculpture done by someone named helaman ferguson, who is both a mathematician and an artist, this brings tother a lot of different aspects of infinity all in one piece. if you look at this sculpture, the cross-section is a triangle with the sides bent inward, and what's happened is that this triangle turns and twists around and then joins back up again. so it has a twist in it. and so what you end up with is this edge here. and if you follow the edg
. >> he lead a regiment of some 6000 troops into iraq in 2003 and spent much of his career at the pentagon, calling some to question his battlefield credentials. >> how much personal time have you had in afghanistan? >> senator, i have not served on assignment in afghanistan. >> in this high-profile position, he will have to manage the politics in washington and in kabul, especially when that suggesting what u.s. forces withdraw. >> i will have to look at the capacity of the afghan national security forces. >> president obama has not decided how quickly to withdraw the remaining forces from afghanistan or how many might stay in the country past 2014 or what they will be doing. once the decision has been made, it will be up to the general to make sure the plan works and the work of the last 12 years is not wasted. >> an appeals court has freed three former opposition mps on bail. their sense to three years behind bar criticizing changes to electoral laws passed a member. the case is due to return it to the court next month. a u.n. peace envoy to syria has held talks in cairo with the arab l
to urge a delay to the automatic cuts. the pentagon is set to lose $46 billion in funding come march under president obama spending bill with republicans. martin dempsey, the chair of the joint chiefs of staff, and general raymond odierno, a u.s. army chief of staff, said the cuts could bring about a crisis of military readiness. >> even if we got all of the authority in the universe to deal with it, this would be the steepest, biggest reduction in total obligating authority for the defense department in the history at a time when i will personally attest to the fact is more dangerous than it has ever been. >> we have and will continue to do our part, the significance of these budget reductions will directly impact our ability to sustain readiness today and into the future. we simply cannot take the readiness of our force for granted. if we do not have the resources to train and equip the force, our soldiers, our young men and women, are the ones who will pay the price. >> a pair of senators have unveiled a comprehensive plan to address climate change in the u.s. the legislation by indepen
Search Results 0 to 3 of about 4 (some duplicates have been removed)

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